<template>
  <div class="login-container">
    <el-form ref="loginFormRef" :model="loginData" :rules="loginRules" class="login-form">
      <div class="flex text-white items-center py-4">
        <span class="text-2xl flex-1 text-center">{{ $t('login.title') }}</span>
        <lang-select style="color: #fff;" />
      </div>

      <el-form-item prop="username">
        <div class="p-2 text-white">
          <svg-icon icon-class="user" />
        </div>
        <el-input
          class="flex-1"
          ref="username"
          size="large"
          v-model="loginData.username"
          :placeholder="$t('login.username')"
          name="username"
        />
      </el-form-item>

      <el-tooltip :disabled="isCapslock === false" content="Caps lock is On" placement="right">
        <el-form-item prop="password">
          <span class="p-2 text-white">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            class="flex-1"
            v-model="loginData.password"
            placeholder="密码"
            :type="passwordVisible === false ? 'password' : 'input'"
            size="large"
            name="password"
            @keyup="checkCapslock"
            @keyup.enter="handleLogin"
          />
          <span class="mr-2" @click="passwordVisible = !passwordVisible">
            <svg-icon :icon-class="passwordVisible === false ? 'eye' : 'eye-open'" class="text-white cursor-pointer" />
          </span>
        </el-form-item>
      </el-tooltip>

      <el-button size="default" :loading="loading" type="primary" class="w-full" @click.prevent="handleLogin"
        >{{ $t('login.login') }}
      </el-button>

      <!-- 账号密码提示 -->
      <div class="mt-4 text-white text-sm">
        <span>{{ $t('login.username') }}: root@admin.com</span>
        <span class="ml-4"> {{ $t('login.password') }}: 123456</span>
      </div>
    </el-form>
  </div>
</template>

<script setup lang="ts">
import sha256 from 'crypto-js/sha256'
import router from '@/router'
import LangSelect from '@/components/LangSelect/index.vue'
import SvgIcon from '@/components/SvgIcon/index.vue'

// 状态管理依赖
import { useUserStore } from '@/store/modules/user'

// API依赖
import { LocationQuery, LocationQueryValue, useRoute } from 'vue-router'
import { LoginData } from '@/api/auth/types'

const userStore = useUserStore()
const route = useRoute()

/**
 * 按钮loading
 */
const loading = ref(false)
/**
 * 是否大写锁定
 */
const isCapslock = ref(false)
/**
 * 密码是否可见
 */
const passwordVisible = ref(false)

/**
 * 登录表单引用
 */
const loginFormRef = ref(ElForm)

const loginData = ref<LoginData>({
  username: 'root@admin.com',
  password: '123456'
})

const loginRules = {
  username: [{ required: true, trigger: 'blur' }],
  password: [{ required: true, trigger: 'blur', validator: passwordValidator }],
  verifyCode: [{ required: true, trigger: 'blur' }]
}

/**
 * 密码校验器
 */
function passwordValidator(rule: any, value: any, callback: any) {
  if (value.length < 6) {
    callback(new Error('The password can not be less than 6 digits'))
  } else {
    callback()
  }
}

/**
 * 检查输入大小写状态
 */
function checkCapslock(e: any) {
  const { key } = e
  isCapslock.value = key && key.length === 1 && key >= 'A' && key <= 'Z'
}

/**
 * 登录
 */
function handleLogin() {
  loginFormRef.value.validate(async (valid: boolean) => {
    if (!valid) return

    loading.value = true

    try {
      await userStore.login({
        ...loginData.value,
        password: (sha256(loginData.value.password) as unknown) as string
      })

      const query: LocationQuery = route.query

      const redirect = (query.redirect as LocationQueryValue) ?? '/'

      const otherQueryParams = Object.keys(query).reduce((acc: any, cur: string) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})

      router.push({ path: redirect, query: otherQueryParams })
    } catch (error) {
      console.log(error)
    } finally {
      loading.value = false
    }
  })
}
</script>

<style lang="scss" scoped>
.login-container {
  min-height: 100%;
  width: 100%;
  background-color: #2d3a4b;
  overflow: hidden;

  .login-form {
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;

    .captcha {
      position: absolute;
      right: 0;
      top: 0;

      img {
        height: 48px;
        width: 120px;
        cursor: pointer;
      }
    }
  }
}

.el-form-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.1);
  border-radius: 5px;
}

.el-input {
  background: transparent;

  // 子组件 scoped 无效，使用 :deep
  :deep(.el-input__wrapper) {
    padding: 0;
    background: transparent;
    box-shadow: none;

    .el-input__inner {
      background: transparent;
      border: 0px;
      border-radius: 0px;
      color: #fff;
      caret-color: #fff;

      &:-webkit-autofill {
        box-shadow: 0 0 0 1000px transparent inset !important;
        -webkit-text-fill-color: #fff !important;
      }

      // 设置输入框自动填充的延迟属性
      &:-webkit-autofill,
      &:-webkit-autofill:hover,
      &:-webkit-autofill:focus,
      &:-webkit-autofill:active {
        -webkit-transition-delay: 99999s;
        -webkit-transition: color 99999s ease-out, background-color 99999s ease-out;
      }
    }
  }
}
</style>
